A phrase used to win an argument. After
said phrase is spoken, proceed to punch the opposing person in the stomach. The phrase was first coined in internet personality Linkara's review of the god-awful DC Elseworlds story "Superman: At Earth's End," when Superman (looking an awful lot like
Santa Claus) shouts the phrase at
chicken-headed android Ben Boxer, and then proceeds to punch Boxer's guts out.
(walks up to random
person on the
street) "I AM A MAN!!!!!!!!!!!!" (punches said person in the
stomach, possibly rupturing his/her intestines)
And yes, even if you are a woman, it only works if you shout, "I AM A MAN!!!!!!!!!!!!!!"